( informal , especially BrE ) to have a sexual or romantic experience with sb; to start a sexual relationship with sb :
Steve got off with Tracey at the party.
( informal , especially BrE ) to have a sexual or romantic experience with sb; to start a sexual relationship with sb :
Steve got off with Tracey at the party.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005